package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;

/**
 * 集中处理异常
 */
//@ResponseBody
//@ControllerAdvice(basePackages ="com.atguigu.gulimall.product.app")

@Slf4j
@RestControllerAdvice(basePackages ="com.atguigu.gulimall.product.app")
public class ExceptionControllerAdvice {

    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleVaildException(MethodArgumentNotValidException e){
        //测试异常类型叫什么e.getClass()
        log.error("数据校验出现异常{}，异常类型：{}",e.getMessage(),e.getClass());
        BindingResult bindingResult = e.getBindingResult();
        Map<String,String> errorMap=new HashMap<>();
        bindingResult.getFieldErrors().forEach((fieldError)->{
            errorMap.put(fieldError.getField(),fieldError.getDefaultMessage());
        });

//        return R.error(400,"数据校验出现问题").put("data",errorMap);
        return R.error(BizCodeEnum.VALID_EXCEPTION.getCode(),BizCodeEnum.VALID_EXCEPTION.getMsg()).put("data",errorMap);
    }

    //异常兜底处理，处理其他所有未定义的异常
    @ExceptionHandler(value = Throwable.class)
    public R handleException(Throwable throwable){
//        return R.error(400,"系统未知异常");
        return R.error(BizCodeEnum.UNKNOW_EXCEPTION.getCode(),BizCodeEnum.UNKNOW_EXCEPTION.getMsg());
    }
}


